Johnson, acquired by the Kings from Toronto in July for a second-round pick in 2014, admitted he lost his motivation as a rookie.

"It was a combination of not playing and having more money than I ever had in my life," Johnson said. "I didn't know what to do, didn't know how hard I had to go. I worked tremendously hard to get here, and I should have been working harder to stay. Instead, I was satisfied. But then my next year, I realized I hadn't done anything in the league to be satisfied; I just got here. So that's when I got on it."